// badly implimented. Currently only tests for alphabetical chars.

StringUtils{
	
	*isNumber{|val|
		if( (val.class != Integer) && (val.class != Float)){
			val.do{|char|
				if(char.isAlpha){
					^false;
				}
			};
		};
		^true;
	}
	
	*shortenStringsInArray{|array, length|
		var newArray;
		newArray = Array.new;
		array.do{|item|
			newArray = newArray.add(item.copyRange(0,length));
		};
		^newArray
	}
		
}